Windows 11 Pro 21H2, build , is the general availability (RTM) version of the original Windows 11 release, launched on October 5, 2021. The "x64 multil" designation indicates a 64-bit architecture with multi-language support, allowing users to select their preferred language during or after installation. Key Specifications and Status Version Status: This version has reached End of Servicing
If you need a stable, multilingual Pro environment and can’t upgrade beyond 21H2 due to legacy software, ensure your installation media is verified and your device is air-gapped or behind strong network controls. For most users, upgrading to Windows 11 23H2 or 24H2 is strongly advised for continued security updates.
Version Status (Outdated): Version 21H2 has reached the end of its main lifecycle support.